Merge pull request #22 from calfjohn/master

role will attack as enemy is in attack zone
Add blood drop effect
Merge pull request #23 from RaoZiJian/master

Add blood drop effect
add mage
Merge branch 'master' of github.com:fusijie/FantasyWarrior3D
fixed mage walk state bug.
binding move and effectsprite and pointlight
Merge pull request #24 from zaojiahua/master

binding move and effectsprite and pointlight
Calculate the UI position by windows size
Merge pull request #25 from RaoZiJian/master

Calculate the UI position by windows size
remove hero after dead.
Merge branch 'master' of github.com:fusijie/FantasyWarrior3D
remove three  variables: mage , monster , warrior